http://nopr.niscair.res.in/handle/123456789/4976 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/5139 Title: Production and optimization of cellulases on pretreated groundnut shell by <i style="">Aspergillus terreus</i> AV49 <br/> <br/>Authors: Vyas, Ashish; Vyas, Deepak; Vyas, K M <br/> <br/>Abstract: Biochemical parameters (effect of alkali of different concentration, substrate concentration, nitrogen sources, effect of Ca⁺⁺, effect of amino acid) were evaluated to optimize cellulase production by <i style="">Aspergillus terreus</i> on groundnut shell. 1<i style="">N</i> NaOH, 5% substrate concentration, 2 m<i style="">M</i> calcium concentration were optimum for cellulase production. Metheonine, asparagine and tryptophan were found to be stimulatory for cellulase activity. <br/> <br/>Page(s): 281-286 http://nopr.niscair.res.in/handle/123456789/5133 Title: Stability and flow behaviour of barium sulphate suspension and the preparation of stable barium sulphate suspension for medical use <br/> <br/>Authors: Nag, Ahindra <br/> <br/>Abstract: Stability and flow behaviour of concentrated barium sulphate suspension (BSS) was studied in the presence of sodium carboxy methyl cellulose (NaCMC), bentonite and poly vinyl pyrrolidone (PVP). NaCMC (0.2 %) showed maximum viscosity (50 %), maximum sedimentation volume of BSS and maximum (0.4 %) adsorption of NaCMC by BSS. Bentonite and PVP had no significant effect on sedimentation volume of BSS but increased the viscosity . The radiological studies on the X-ray picture of rabbit using BSS (50 %) and NaCMC (0.2 %) exhibited poor contrast of the stomach region. To increase the stability, suspension was mixed with tri sodium citrate (4 %). The X-ray picture of rabbit showed good contrast of the stomach as well as the small intestine region. <br/> <br/>Page(s): 268-272 http://nopr.niscair.res.in/handle/123456789/5131 Title: Assessment of transformer insulation system by evaluating partial discharge and dissolved gas analysis <br/> <br/>Authors: Verma, P; Roy, M; Verma, A; Bhanot, Vimal <br/> <br/>Abstract: Partial Discharge (PD) measurement is carried out on the accelerated aged oil-paper samples in specially designed test cell. The accelerated thermal stress is selected from the temperature range 120 to 160^°°C and electric stress 1.0 to 2.5 per unit (pu, 1 pu = 1.0 kV). The test cell is taken out after 15, 30, 45 and 60 d to assess the extent of degradation of transformer insulation by performing PD test. The PD results are correlated with dissolved gas analysis and microstructure analysis of aged paper samples. <br/> <br/>Page(s): 262-267 http://nopr.niscair.res.in/handle/123456789/5123 Title: Evaluation of silkmoth (<i style="">Bombyx mori</i>) allergens in sericultue grainage industries as major pollutants <br/> <br/>Authors: Venkatappa, B; Chandrakala, A N; Anuradha, P; Chatrappa, B <br/> <br/>Abstract: Allergens from scales and cuticles of abdomen and wing of silk moth, <i style="">Bombyx mori,</i> causatives of allergic rhinitis have been subjected to solubilization with SDS (2%), urea (8<i style="">M</i>) and guanidine hydrochloride (6<i style="">M</i>). Allergens (70%) were extracted and all the solvent extracts contained an approx similar complement of allergens. Allergen composition of abdomen and wing scales differ from one another and both revealed 30-40 polypeptides, on SDS-PAGE separation, of which about 8 in each case make up the major proportion. Major allergens had molecular weights of 14000 to 65000. Proteins extracted from both scales represent a true reflection of the abdominal and wing cuticles and also minor differences were found between the proteins of segment and intersegment cuticle. The isolated allergens were used for immunological analysis. However, some structural components were found common to some of the allergens because of their good antibody cross reactivity. <br/> <br/>Page(s): 287-292